CVE-2026-53519

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Source
https://cve.org/CVERecord?id=CVE-2026-53519
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53519.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-53519
Aliases
Downstream
Related
Published
2026-06-12T21:03:48.844Z
Modified
2026-07-31T18:31:41.780369224Z
Severity
  • 9.1 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
Summary
Nezha Monitoring: Pre-auth path traversal via /dashboard.. prefix confusion leaks jwt_secret_key
Details

Nezha Monitoring is a self-hostable, lightweight, servers and websites monitoring and O&M tool. Prior to version 2.0.13, fallbackToFrontend in the dashboard's NoRoute handler treats any URL whose raw string starts with /dashboard as an admin-frontend asset request. The check uses strings.HasPrefix, not a path-segment match, so the input /dashboard../data/config.yaml is accepted; strings.TrimPrefix leaves ../data/config.yaml; and path.Join("admin-dist", "../data/config.yaml") normalizes to data/config.yaml — which os.Stat finds and http.ServeFile returns. No authentication required. This issue has been patched in version 2.0.13.

Database specific 
{
    "cwe_ids": [
        "CWE-22"
    ],
    "cna_assigner": "GitHub_M",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53519.json"
}
References

Affected packages

Git / github.com/nezhahq/nezha

Affected ranges

Type
GIT
Repo
https://github.com/nezhahq/nezha
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
1e0f479bb5bdef400a79303d470b3d51c8f48a5d
Database specific 
{
    "source": "AFFECTED_FIELD",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "2.0.13"
        }
    ]
}

Affected versions

v0.*
v0.15.14
v0.15.15
v0.15.16
v0.15.17
v0.15.18
v0.15.19
v0.15.20
v0.16.0
v0.16.1
v0.16.10
v0.16.11
v0.16.12
v0.16.13
v0.16.14
v0.16.17
v0.16.18
v0.16.19
v0.16.2
v0.16.20
v0.16.21
v0.16.22
v0.16.23
v0.16.24
v0.16.25
v0.16.26
v0.16.27
v0.16.28
v0.16.29
v0.16.3
v0.16.4
v0.16.5
v0.16.6
v0.16.7
v0.16.8
v0.16.9
v0.17.0
v0.17.1
v0.17.10
v0.17.2
v0.17.3
v0.17.4
v0.17.5
v0.17.6
v0.17.7
v0.17.8
v0.17.9
v0.18.0
v0.18.1
v0.18.10
v0.18.11
v0.18.12
v0.18.13
v0.18.14
v0.18.2
v0.18.3
v0.18.4
v0.18.5
v0.18.6
v0.18.7
v0.18.8
v0.18.9
v0.19.0
v0.19.1
v0.19.10
v0.19.11
v0.19.12
v0.19.13
v0.19.14
v0.19.15
v0.19.16
v0.19.17
v0.19.18
v0.19.19
v0.19.2
v0.19.20
v0.19.3
v0.19.4
v0.19.5
v0.19.6
v0.19.7
v0.19.8
v0.19.9
v0.20.0
v0.20.1
v0.20.2
v0.20.3
v0.20.4
v1.*
v1.0.0
v1.0.1
v1.0.10
v1.0.11
v1.0.12
v1.0.13
v1.0.14
v1.0.15
v1.0.16
v1.0.17
v1.0.18
v1.0.19
v1.0.2
v1.0.20
v1.0.21
v1.0.22
v1.0.23
v1.0.3
v1.0.4
v1.0.5
v1.0.6
v1.0.7
v1.0.8
v1.0.9
v1.1
v1.1.1
v1.1.2
v1.1.3
v1.1.4
v1.1.5
v1.1.6
v1.1.7
v1.10.0
v1.10.1
v1.10.2
v1.10.3
v1.10.4
v1.10.5
v1.10.6
v1.10.7
v1.10.8
v1.11.0
v1.12.0
v1.12.1
v1.12.2
v1.12.3
v1.12.4
v1.13.0
v1.13.1
v1.13.2
v1.14.0
v1.14.1
v1.14.10
v1.14.11
v1.14.12
v1.14.13
v1.14.14
v1.14.2
v1.14.3
v1.14.4
v1.14.5
v1.14.6
v1.14.7
v1.14.8
v1.14.9
v1.2.0
v1.2.1
v1.2.2
v1.2.3
v1.2.4
v1.2.5
v1.2.6
v1.2.7
v1.2.8
v1.2.9
v1.3.0
v1.4.0
v1.4.1
v1.4.2
v1.4.3
v1.4.4
v1.4.5
v1.4.6
v1.4.7
v1.4.8
v1.4.9
v1.5.0
v1.5.1
v1.5.10
v1.5.11
v1.5.12
v1.5.13
v1.5.2
v1.5.3
v1.5.4
v1.5.5
v1.5.6
v1.5.7
v1.5.8
v1.5.9
v1.6.0
v1.6.1
v1.6.2
v1.6.3
v1.6.4
v1.6.5
v1.6.6
v1.6.7
v1.6.8
v1.6.9
v1.7.0
v1.7.1
v1.7.2
v1.7.3
v1.7.4
v1.7.5
v1.7.6
v1.8.0
v1.8.1
v1.8.2
v1.9.0
v1.9.1
v1.9.10
v1.9.11
v1.9.2
v1.9.3
v1.9.4
v1.9.5
v1.9.6
v1.9.7
v1.9.8
v1.9.9
v2.*
v2.0.0
v2.0.10
v2.0.11
v2.0.12
v2.0.2
v2.0.3
v2.0.4
v2.0.5
v2.0.6
v2.0.7
v2.0.8
v2.0.9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53519.json"